4/32 = x/100
answer: x = 12.5
Answer:
Step-by-step explanation:
Well 12y is the most obvious answer.
Anything that makes 12 is good enough.
4(3y) is another answer
12(y)
1(12y)
6(2y)
2(6y
Replace f(x) with y:
y = 3x +2
interchange the variables:
x = 3y +2
switch the equation so the Y is on the left side:
3y +2 = x
subtract 2 from each side:
3y = x-2
divide each term by 3 to get y alone:
y = (x-2)/3
replace y with inverse of F(x) which is f^-1(x):
f^-1(x) = -(x-2)/3
